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Simplifying x2 + -2x + -5 = x2 + -1x Reorder the terms: -5 + -2x + x2 = x2 + -1x Reorder the terms: -5 + -2x + x2 = -1x + x2 Add '-1x2' to each side of the equation. -5 + -2x + x2 + -1x2 = -1x + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -5 + -2x + 0 = -1x + x2 + -1x2 -5 + -2x = -1x + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -5 + -2x = -1x + 0 -5 + -2x = -1x Solving -5 + -2x = -1x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add 'x' to each side of the equation. -5 + -2x + x = -1x + x Combine like terms: -2x + x = -1x -5 + -1x = -1x + x Combine like terms: -1x + x = 0 -5 + -1x = 0 Add '5' to each side of the equation. -5 + 5 + -1x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1x = 0 + 5 -1x = 0 + 5 Combine like terms: 0 + 5 = 5 -1x = 5 Divide each side by '-1'. x = -5 Simplifying x = -5
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